The seasonal challenge to find four fragments of the Thieves Guild house needs a small fix. I have four fragments (one each of Wherenow and Sai and two Baan Dar), yet my progress for this seasonal challenge is 0/4. The challenge is not to "find" or "collect" the four fragments, but to consume them and the challenge should reflect what is actually required. As a suggestion, "Earn the Rogues Refuge house by consuming its four fragments" would more accurately tell the player what they need to do. In my particular case, those fragments are unconsumed because I'm not sure whether duplicates will continue to drop afterward and they are worth at least a bit of gold on traders if they continue to drop.
I'm fresh out of outrage, but I could muster up some amused annoyance if required.